Hazama

Race: Ghost

Hazama was originally one of the Six Heroes who fought against the Black Beast in the First War of Ars Magus. He created the Azure Grimoire (and in turn, the Black Beast) and had wished to quell the mistake he had made. However after the beast was destroyed, he turned his back on the Six Heroes, and murdered one of them, Nine, who was the mother of a fellow heroes' child.

He was the original owner of the Susano'o Unit armor (which now belongs to Hakumen), and it is assumed that, after realizing he was forever linked to the Master Unit while in the armor, he drove himself out of it - which is possibly why he now appears as a ghost. He was formerly sealed away in the Boundary after Hakumen sacrificed himself to pull him in, with help from Jubei. He was later released before the events of BlazBlue: Calamity Trigger by Takamagahara.